This is a unique sequence of events named after a town in Sweden, where this apparently happens quite frequently. After dumping your spunk in her rear, the sauce is sucked out of the anus by the male. Once the sauce has transferred from her bowls to your mouth--the product that has been created is now known as "Swedish Cheese."
The move is completed when the "Swedish Cheese" is transferred to the ladies mouth via a deep tongue kiss. You can cap this off with a swift stinging slap of her ass to show her how much you care and appreciate all her hard work.